One of the first things we learn in Checkers is a simple 2-for-1. It takes us a bit longer to recognize the many 2-for-1 types. But even after many years, we are unlikely to visit all their hiding places or all the ways they can arise.

This page likely hides more 2-for-1s and 2-for-1 threats than any one page in history, 24 of them in a total of only 4 settings.

Note the many 2-for-1s in the variations that are not animated. Check them out, and vote for the problem you think is best.